dummy
n.
A card or block placed where an object should be stored in a sequence that indicates another location where the object is actually stored.
A mockup of a page created by pasteup or computer that is used to show the final design.
A mockup of a book, cover, and dust jacket created to show the final design.
Notes
A dummy1 may be filed in place of an original that must be stored elsewhere because of size or preservation concerns.
